Today’s smartphones are mini-computers. They store your contact details, pictures, diary, and notes. Since a lot of this information is private, you need to ensure that if the phone falls into the wrong hands your information remains secure. For Android phone owners, a tool that helps you do this is App Lock.

App Lock is a free smartphone application for Android devices. The application’s function is simple yet highly useful – it password protects any application you choose. After installation, the app automatically locks the Gmail app and your phone’s settings with the default password ‘8888’. You can modify this password anytime and add more apps to the locked list. With your options set, the applications you choose will be inaccessible until you key in the right password.